243205501102 has 4 divisors (see below), whose sum is σ = 364808251656. Its totient is φ = 121602750550.

The previous prime is 243205501039. The next prime is 243205501183. The reversal of 243205501102 is 201105502342.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60801375274 + ... + 60801375277.

It is an arithmetic number, because the mean of its divisors is an integer number (91202062914).

Almost surely, 2^243205501102 is an apocalyptic number.

243205501102 is a deficient number, since it is larger than the sum of its proper divisors (121602750554).

243205501102 is a wasteful number, since it uses less digits than its factorization.

243205501102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121602750553.

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 243205501102 in words is "two hundred forty-three billion, two hundred five million, five hundred one thousand, one hundred two".